h4,p,span,del{
	background-color:pink;
	width:300px;
	height: 200px;
	margin:10px auto;
	text-align: center;
	
}
input{
	width:200px;
	height:50px;
	text-align: center;
	margin:auto;
}
a{
	display: inline-block;  /*转换为块元素*/
	width:50px;
	height: 30px;
	boder:1px solid red;
	
}